| Lat / long: | 37.64408, -121.65103 |
| Primary: | Manganese |
| Discovery year: | 1885 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Producer |
| MRDS | M004653 |
| DEP | 10109077 |
| Reference | {Deposit:: CALIF. JOUR. MINES & GEOL. V. 46, NO.2, APRIL 1950, P. 344}{Deposit:: DOM BULL. 125, P.98}{Deposit:: BULL. 152, P.20-21} |
| Reporter | Gere, W., Von Dohlen, E.; Albers, J. |